Iguano is an Iguanodon. He was Dr. Cockroach's fourth creature, and his second regular creature. His card, along with the Move Cards Green Impulse, Nature's Blessing, and Dino Force winded up in Australia, right by Ayers Rock. He was activated when a rocket landed near his open Card Capsule, blowing his card onto some shrubbery. He left the area, but later returned and saw Team Monster. After spotting their Dino Holders, he challenged them, battling Thylaco alongside the 11 Tupuxuara, 3 Minmi, and 3 Muraenosaurus. He lost, however. He was later revealed to be a 3 on the Power Scale, and was given the Anuro Tornado card. Four episodes later, he battled a Future Shark alongside the Anurognathus and lost.